New Austrian Tunnelling method (Q694890)
popular method of modern tunnel design and construction
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other details
aliases NATM
 sequential excavation method
 SEM
 sprayed concrete lining method
 SCL
description popular method of modern tunnel design and construction

External Links
(P349) 01181237
(P646) /m/04g1vd
(P6366) 178595277
(P10283) C178595277